naval base at pearl harbor, hawaii. that was 71 years ago today. moments ago at almost the exact minute it happened hawaiian time military veterans active duty service members and americans of all ages held a moment of silence at pearl harbor memorial to remember 12,400 men and women that lost their lives that day. >>> help for the disabled. a cleaner environment. safer world. you want all that, right? well, the european space agency says it's got the answer, and it's in space. cnn's aiyish reports from london. >> like an audio gps for the blind and visually impaired, the faster it ticks, you are on the right track. >> if you turn to the right side,ist the wrong way. if you go to the left side, it's the wrong way. so you find in the middle where it's very loud. there you have to go. >> reporter: satellites are used by different industries, like aviation. used in bad weather for planes and helicopters. >> the new aviation paradigm is going to be satellite navigation to be sure that aircrafts are going to be better using the airspace and the use of l